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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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This exception has no message.
java.lang.NullPointerException: 	at java.util.Hashtable.hash(Hashtable.java:262)	at java.util.Hashtable.put(Hashtable.java:547)	at com.aptana.theme.internal.OrderedProperties.put(OrderedProperties.java:62)	at com.aptana.theme.TextmateImporter.convertToProperties(TextmateImporter.java:131)	at com.aptana.theme.TextmateImporter.convert(TextmateImporter.java:55)	at com.aptana.theme.preferences.ThemePreferencePage.widgetSelected(ThemePreferencePage.java:1342)	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)	at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)	at org.eclipse.jface.window.Window.open(Window.java:802)	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:215)	at com.aptana.theme.internal.OpenThemePreferencesHandler$1.runInUIThread(OpenThemePreferencesHandler.java:43)	at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4145)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3762)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)	at org.eclipse.equinox.launcher.Main.run(Main.java:1450)